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How to increase Portable Generator Wattage output
Craigs list is going to be your best bet. There is nothing you can do with what you have. If you put on a bigger motor, you will over drive your generator and it will burn it out, if you put on a bigger generator, your motor will not drive it.
Another potential would be harbor freight, they have a generator with out a motor and you might look at that.
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How to increase Portable Generator Wattage output
If it will work, not sure what you are looking to do, a little more umph, do you know what you are looking to accomplish? Like say what you want to run requires 2000 watts?
Basically things look like this, it takes 1 hp/750 watts, that is gross. Gross means with out electrical or mechanical losses. As a rule, you can figure 60% of what you get.
A 10K generator requires a 20 hp motor. Rough calculation says that equates to 13 hp, using the derate I gave you, multiply the 13.333 hp from the first calc multiply by 1.4 for the derrating value and you get 18.666 hp to run a 10 KW generator, so you buy a 20 hp motor to improve recovery during load changes, providing a more stable output and less chance of damage to your equipment.
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How to increase Portable Generator Wattage output
http://www.harborfreight.com/catalog/product/view/id/1315/category/429/
The link above will take you to the generator sold by these guys, you can get on line and see what the reviews of it say.
This says in the specs on it a 16hp is good enough, so your 17 would be fine according to them. Running an oversized engine is just a tad more expensive than the recommended one. Like maybe a few cents a day. The gen shown has all the controls and outlets so no effort on that part for you. The lowered hp indicates that the gen set they have may be a little more efficient. Running a larger motor on yours would make it easier to maintain full output, but if you are near the max on your requirement it will hurt the one you have.
Doing a craigslist scan of my area, I found a 3KW gen for 300 and a 5KW for 400, and another 5KW for 350. Anyhow, you have a lot of options facing you. As Yoda says, "Choose wisely". If you have anymore questions, ask away.
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How to increase Portable Generator Wattage output
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I was looking at the Harbor Freight link that you supplied and I love it. The info you provided is awesome. My girl friend liked it to, but had this question. How will running a gas powered enginediffer from running it with a diesel engine considering you can run a diesel for extended periods of time with out the threat of overheating. Can that gas engine I have take long hours or will it need to be modified or what?
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I do not see an issue using your engine, I assume it is air cooled, but, even if it is liquid, there should be no issue.
As far as a comparison of gas or diesel for running a generator, you would have to do something to increase the speed to the generator from the diesel, which is no big issue as it would simply be a matter of pulley sizing. Other than that it is just the usual gas/diesel argument. Overheating is a subject which will destroy both engines, I have not noticed either engine being particularly immune to overheating, both need to have an intact cooling system that is working properly. I have ran gas powered generators for days at a time with no ill effect or overheating when all air paths were clear of obstruction. Plug the air path and any engine will over heat. I have a little diesel which will run this generator for 2 or 3 working days on 6 gallons of fuel. I also have a 18hp Onan which is gas and is nearly as good on fuel and it is air cooled.
If you do follow the HF path, create a tensioner which will allow the engine to start before engaging the generator, put the tensioner on the slack side, that would be return to the engine pulley, it will help give the most bite to the engine pulley. Not really critical, just a preference of mine this tension pulley location.
Modification of your engine, I do not see the need except possibly providing a larger fuel tank. Make sure the cooling fins are clear and all shrouds are installed. The big difference between the gas and diesel engines is the RPM each will turn for best hp rating as far as running your generator Read through the comments on the HB site, give you some ideas of the errors others have made, 1 in-particular, letting the engine exhaust into the generator. There was also a note in the comments on the grease used in the bearings. I noticed the same thing on the HB lathe I purchased.
For all the comments I have made, I assume you are only running your generator while working which would be about 8 to 12 hours a day, maybe 16 hours, I think your engine will do fine, but i have no idea of the age or condition of it.
Nice looking dog buy the way.
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How to increase Portable Generator Wattage output
hardwood, agree with everything you said, I have a little 10KW 3 phase for running the pivot sprinkler. But if einnoc goes with the Harbor freight generator like he says, the 17 hp engine won't be that much of an over power, they recommend 16 hp and he has a 17 hp engine and his description of what he is running he will not overload it.
As far as the comment about engine speed, most gas engines are set for 3600 on the governor so should not be an issue on that unless he decided to go diesel, then he would have an issue with pulley selection.
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